Re: Remote Golf Trolley

On Sat, 26 Nov 2005 14:22:13 -0000, "Dave D" <dave_d@xxxxxxxxxx>
wrote:

>
>"Seafarer" <Seafarer@xxxxxxxxxxxxx> wrote in message
>news:438832a4.1609171@xxxxxxxxxxxxxxxxxxxxx
>
>> In my days,not sure about now,you could attach a reciever plugged into
>> your scope and when a command was triggered up came the wave form on
>> the scope with the frequency easily workrd out.
>> I thought there maybe something along those lines where I could see
>> both waveforms and adjust from inside one.Thanks again.Frank
>>
>
>Two thoughts here. Firstly, you appear to ber confusing the carrier
>frequency of the transmitter with the clock frequency of the data, but
>they're two entirely different things.
>
>Secondly, a scope is not much use in determining the spot frequency of a
>transmitter - that is what your frequency counter is for. The devices in
>question possibly operate in the UHF band, so your frequency counter will
>need to operate up to the frequency of the transmitter, or you'll need a
>prescaler suitable for the job.
>
>All you need to do is inject the transmitter output into the counter,
>preferably not by direct coupling as it may damage the counter depending on
>the transmit power, and it should display the frequency. You could try a
>length of wire in the of the counter's input socket, and operate the
>transmitter and see what happens.
>
>Your best bet IMO is to simply transfer the RF section from the spare cart
>to the good one should you lose the remote. The frequency is likely set by
>crystals and replacements would have to be specially cut, and to do this the
>crystal manufacturers would need info on the circuit design. It's very
>unlikely to be a case of simply tweaking the device on frequency, crystal or
>pll control of transmitters has been standard for a long time now. The
>reciever might be a different matter, but as you have a spare RF section I
>don't see it's worthwhile fiddling around.
>
>Dave
>
>
Thanks for the info,it seems the way to go is as you say,then again if
I swap units I'll still end up with one handset but at least Iknow
what to look for.Many thanks.



.

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